CVE-2025-65499

The CVE-2025-65499 issue affects libcoap 4.3.5, specifically the tls_verify_call_back() path in src/coap_openssl.c. A misindexed array causes SSL_get_ex_data_X509_STORE_CTX_idx() to return -1, enabling a remote attacker to trigger a denial of service during a crafted DTLS handshake. Public adviso...

PT-2025-47909

Integer signedness error in tls verify call back in src/coap openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted TLS certificate that causes i2d X509 to return -1 and be misused as a malloc size parameter...

CVE-2025-65499

Array index error in tlsverifycallback in src/coapopenssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS handshake that triggers SSLgetexdataX509STORECTXidx to return -1...

CVE-2025-65499

Array index error in tlsverifycallback in src/coapopenssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS handshake that triggers SSLgetexdataX509STORECTXidx to return -1...

Linux Distros Unpatched Vulnerability : CVE-2025-65495

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Integer signedness error in tlsverifycallback in src/coapopenssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted TLS...

libcoap 安全漏洞

libcoap is a C implementation of a lightweight application protocol open-sourced by obgm. A security vulnerability exists in libcoap version 4.3.5, which stems from an integer sign error in the tlsverifycallback function in src/coapopenssl.c, which could lead to a denial of service attack...

CVE-2025-65495

Integer signedness error in tlsverifycallback in src/coapopenssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted TLS certificate that causes i2dX509 to return -1 and be misused as a malloc size parameter...

The vulnerability of the set_verify_callback() function in the Icinga accessibility monitoring system allows a hacker to bypass security restrictions, gain unauthorized access to protected information, or execute arbitrary commands.

The vulnerability of the setverifycallback function in the Icinga accessibility monitoring system is related to errors in the TLS certificate validation process. Exploiting this vulnerability could allow a malicious actor to bypass security restrictions, gain unauthorized access to protected...